Warpfiend Grey vs Faded Purple

How close are they?

ΔE 10.3, fair: the same colour family, but not a straight swap. Faded Purple is warmer than Warpfiend Grey.

Can I use Faded Purple instead of Warpfiend Grey?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Faded Purple is warmer than Warpfiend Grey.

Can I use Warpfiend Grey instead of Faded Purple?

The same difference applies the other way round: Warpfiend Grey is cooler.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.